The improvement of the surface finish of a product that has been electroplated is called electropolishing. It involves reversing the current. This results in making the either electroplated or electroformed item the anode. An appropriate solution must be used to produce the right results.
The equipment may consist of but is not limited to:
* Work Bar
* Racks – on which to place the items for electropolishing
* Tanks – usually of stainless steel
* Cathodes – comprised of copper, lead or stainless steel
* Rectifiers or motor – generator sets – to supply the direct current
* Cleaning facilities – may include degreaser
* Rinsing
The Major Purpose of Electropolishing
The major intent of electropolishing is a simple one. Its purpose is to smooth out the metallic surface of the object to which the method is applied. The process acts on the item to dissolve the projections on the surface of the object. This results in what is called micro leveling of its surface. This creates a polished surface that can also be glossy in appearance. This is one reason electropolishing is performed on specific items. There are others.
Electropolishing Applications
Several purposes are fulfilled when an item, component or product undergoes electropolishing. The method is adopted to achieve at least, but frequently more than one of the following results.
* To produce a smooth and passive surface
* To get rid of edge burrs – a surface roughness that is the result of some mechanical cutting tools
* To improves the overall appearance of the metal
* To increase its reflectivity
* To improve its anti-corrosion capabilities
* To prepare the metal surface for a variety of procedures including plating, and an oxidizing or conversion coating
To take away surface layers of the metal that may be found to be stressed or disturbed. These are often the result of mechanical methods
* To do away with the results of any finishing process that has resulted in abrasion on the surface of the metal
* To remove from the surface anything that may be needed or desired as use for milling parts
These are the intents taken into consideration when submitting an item to electropolishing. They are also the results and the advantages of utilizing the process.
Why Electropolishing?
Electropolishing is a practice common in the metal industry. It provides the manufacturer of the designated component or product with an improved item. Overall, it allows the product to emerge as one not only with a smoother surface, free of burrs and other appendages but also a part that is corrosive free. When all is said and done, the process known as electropolishing takes a rough, coarse product and turns it into a smoothed refined one with benefits.
If you are considering including Electropolishing as part of finishing your product, get in touch with the professionals at PEP General Metal Finishing. Since 1972, we have been providing quality plating and finishing services to our clients. Our precise application of specifications embraces and even surpasses those provided by the military and the ASTM. Is it any wonder we continue to meet the rigorous standards imposed by our clients? To discover how we can help you take the next step in improving the look and application of your components and products, contact us online at http://www.pepgenmetal.com/.
